Holder for roadway pavement expansion means



Aug. 9, 1932. w. T. LAMB 1,871,065

HOLDER FOR ROADWAY PAVEMENT EXPANSION MEANS Filed Dec. 10. 1950 INVENTOR WALTER T LAMB gg 69W ATTORNEY Patented Aug. 9, 1932 UNITE.

rates 'WALTER r. LAMB, or ALPINE, CALIFORNIA, ASSIGNORL or ONE-HALF r0 HARRY JoH1\Tso1\T,or SAN nrneo, CALIFORNIA HOLDER FOR RQAIDWAY PAVEMENT EXPANSION MEANS Application filed December 10," 1930. Serial No. 501,269.

My invention relates tojholders-for roadway pavement expansion means,and the objects of my invention are:

First, to provide aiholder of this class be held in alinement and prevent the TOIIIIZL1- tion of webs of concrete between the adjacent ends of saidexpansion means; ,7 Fourth, to provide a holder of this class which reinforces the margins of the pavement at the ends of the expansion strips;

Fifth, to provide a holder of this class which is formed froma minimum a'mountof materialin a simple and economical manner;

Sixth, to provide a holder of this class which in no wise hinders the function of the expansion means; and 7 'Seventh,'to provide a novelly constructed 3, holder of this class which is durable, efiicient in its action, and whichwill not readily deteriorate or get out of order.

With these and other objects in view as will appear hereinafter, my invention consists of 5 certain novel features of construction, combination and arrangement of parts and portions as will be hereinafter described in detail and particularly set forth in the appended claims, reference being bad to the accompanyao ing drawing and to the characters of reference thereon, which form a part of this application, in which Figure 1 is a fragmentary transverse sectional view of a1 roadbed, showing the rela- '45 tionship of the pavement expansion means and my holder therewith; v I

1 Figs. 2 and 3 are perspective views of my holder viewed from opposite sides Fig. 4: is a fragmentary sectional view 1 so through H of Fig. 1, illustrating the joints formed between continuing strips of pave ment expanslon means;

Flg. 5 1s a sectional view thereof through ,5-5 of Fig. 4, with parts and portions shownin elevation; and 65, Fig. 6 is a reduced developed view of my holder. V

Similar characters of reference refer to similar parts and portions throughout the several views of the drawing. 8Q

Theholder is formed from a strip of flat stock of sheet metal, as shownin Fig. 6. The blank 1 from which the holder is constructed is beveled at its ends, forming pointed portions2.

Equidistant from the ends of the blank; and I near the central portion thereof, there is cut 1 a pair of slits 3, which extend halfway across the blank, as shown best in Fig.6. These two slits form therebetweenj a narrow strip or;fin- 70 ger 4;. The blank is bent along its longitudinal axisuntil-it has a right angular cross section. The blank is-also bent transversely along lines continuing from the slit 3. When thus bent, the holder appears as shown best 7 in'FigsQandB. When so formed, the holder includes a U-shaped holding portion 5' comprising par-v allel disposed adjacent side portions5a, connected together by a narrow cross web 5?), 80

which is a continuation of the strip or finger 4.

' The remaining leg of each angular portion of the holder forms an outwardly extending ear or flange 6. The two flanges thusformed 3 are in the same plane. Each flange or ear 6 i is provided with one or more small perforations 6a. These perforations are adaptedto, receive tacks or other easily broken means for fastening the holder along the inside margins of a header H, as shown in Fig. 1 and by dotted lines in Fig. 6. 7 When thus positioned, the U-shaped or supporting portion 5 of theholder extends outwardly from the header. My holder is particularly adaptedfor holding the expansion strips usedin connectionwith concrete pavement. Such pavement is laid in strips or units about ten feet wide, one strip at a time. At intervals, this pavement unit isseparated by expansion strips S. The'strips are usually formed of a cheap form of sponge rubber, and

extend from the roadbed to just below the surface of the pavement, as shown in Fig. 1. The ends of the expansion strips are inserted in the holders 5, or the expansion strip is first positioned and the holder portion is slipped down over the expansion strips, the pointed portions 2 being driven into the roadbed, as shown in Fig. 1. j

One ormore perforations 50 are provided in the holder portion 5, which are adapted to receive a nail 7 or the like, which is forced through the expansion strip, as .ishown in Fig. 4. l/Vhen the concrete is poured, this nail is embedded therein, and'torms an anchor which retains the holder imposition with sufficient force to allow the header'to be lifted upwardly and break the temporary securing means which fastened the ear-portions 6 to the header.

When used in the manner above described,

the strips 4 may extend across the top of the header-{as shownin Fig. 3 or may be bent down as shown in Fig.2. This, as well as the cross portion 5?), prevents concrete from being poured between the ends of the exp ansion strips and the header. r I

' The expansion strips of the second "or additional unit strips of pavement are positioned in alinement with the expansion strips of the first pavement unit, In order to so hold the additional expansion strips in alinement with the first positioned expansion strip,apair of extensionplates 8 is provided."

These extension plates are otsheet metal and are flat; These plates, two in number, areinserted in the holder portion 5from the exposed or flanged side thereof, as shown in Fig. 4, so as to extend between the. side portions, 5a of the holder and the expansion strip supported thereby; these plates being thus held in parallel disposed relation, receive the adjacent end of the additional expansion strip, as shown in Figs. l and 5. The expansion plates 8 are provided with one or more perforations 8a, which receive nails 7 adapted to retain the expansion strip in position and form an anchor when the concrete is poured. Y y

When my holder is used with the extension plates, the strips or fingers 4 are particularly useful. The finger 4 is extended across the upper edge of the expansion strip S, as shown in" Fig. 5, so as to prevent a concrete web from forming between the adjacent ends of the two paving strips.

f It is obvious from the construction as illustrated in the drawing and described in the foregoing specification, that I have provided a holder for paving machines as aimed at and set forth in the objects of the invention, and

though I have shown and "described a par: 1 ticular construction, combination and ar rangement ofparts'and portions, I'do not wish to be'limited to this particular construction, combination and arrangement, but desire to include in the scope of my invention the construction, combination and arrangement substantially as set forth in the appended claims. 7 Having thus described my invention, what I claim as new and desire to secure by Letters Patent is: 1

1;"In a device of theclass described, a pair of relatively fixed parallel disposed support- 2. In a device of the class described, a;

pair of relativelyfixed parallel disposed supporting members arranged to receive a road way pavement expansion means therebetween, securingflanges extending in opposite directions from said supporting, members and arrange dto fit against the side of a roadway header, and temporary means for fastening said flanges to said roadway header, whereby said expansion projects outwardly. fromsaid headen 3. In a device of'thel class described-ya 7 pair of parallel disposed supporting membersarra'nged to receive a-roadway pavement expansion means therebetween, securing flanges extending in angularly disposed re.- lat on with said supporting members,- means for fastening said supporting members by- -means of said flanges to headers, and ex tension plates arrangedto fit between said supporting members and a first expansion vmeanslheld thereby, said extension plates forming means for supportlng a second expansion means in allnedrelation with said;

first expansion means. J 4. In a device of theclass described, apair of parallel disposed supporting members arranged to receive aroadway pavement expansion means therebetween, securing flanges extending in opposite directions. from said supporting members and arranged to' fit against the side of a roadway header, tem-v porary means for fastening said flanges to said roadway header, whereby said expansion projects outwardly from said header, and extension plates arranged to fitbetween said supporting members and a firstlexpansion meansv held thereby, said extension plates forming means for's'upporting a second ex pansion means'in alined'r'elationwith said first expansion-means.

5. g In a device of the of parallel disposed supporting members ar ranged to receive a roadway pavement ex pansion means therebetween, securing flanges extending in angularly disposed relation with said supporting members, means for fastening said supporting members by means'of class described, a pair said flanges to headers, and anchor means extending through said supporting members and said expansion means and protruding beyond said supporting members.

6. In a device of the class described, a pair of parallel disposed supporting members arranged to receive a roadway pavement expansion means therebetween, securing flanges extending in angularly disposed relation with said supporting members, means for fastening said supporting members by means of said flanges to headers, extension plates arranged to fit between said supporting members and a first expansion means held thereby, said extension plates forming means for supporting second expansion means in alined relation with said first expansion. means, and a plurality of anchor means extending through said supporting members and said extension plates, for locking said expansion means therein, said anchor means protruding beyond said supporting members and said expansion plates.

7. In a device of the class described, a single piece U-shaped supporting member arranged to receive the end of a roadway pavement expansion means, anchor means for se curing said expansion means to said supporting member and for interlocking said supporting member in pavement, and means for temporarily securing said supporting mem-- her to headers bordering said pavement.

8. In a device of the class described,a U- shaped supporting member arranged to receive the end of a roadway pavement expansion means, anchor means for securing said expansion means to said supporting member, and for interlocking said supporting member in pavement, and means for temporarily securing said supportingmember to headers bordering said pavement, said supporting member being pointed at one end so as to be driven into a roadway.

9. In a device of the class described, a supporting member including leg portions ar-- ranged to receive the end margins of a roadway pavement expansion means, and a web portion fixedly connecting the upper ends of said legs, and fitting over the end portions of said expansion means, and means for temporarily fastening said supporting member to roadway headers.

10. In a device of the class described, a supporting member including leg portions arranged to receive the end margins of a roadway pavement expansion means, and a Web portion connecting the upper ends of said legs, and fitting over the end portions of said expansion means, an ear protruding from the web portion of said supporting member, and extension plates arranged to fit between said leg portions and said expansion means, and receive a second expansion means therebetween, said ear arranged to cover the space between said extension plates and co-actwith porting member including leg portions arranged to receive the end margins of a roadway pavement expansion means, and a'web portion connecting the upper ends of said legs and fitting over the end portions of said so as to be driven into a roadway.

12. In a device of the class described, a supexpansion means, said portions being pointed arranged to fit against a header and be temporarily secured thereto. In testimony whereof, I have hereunto set my hand at San Diego, California, this 26th day of November, 1930. a I WALTERT. LAMB. 

